Run results for: Comparing performance of native type comparation and Lodash

Run details:

User agent: Mozilla/5.0 (Android 9; Tablet; rv:66.0) Gecko/66.0 Firefox/66.0

Browser: Firefox 66

Operating system: Android

Device Platform: Tablet

Date tested: 5 years ago

Test name	Executions per second
Lodash for valid case	13602120.0 Ops/sec
Native for valid case using instanceof	37559790.0 Ops/sec
Native for valid case using typeof	98991660.0 Ops/sec
Lodash for invalid case	27980760.0 Ops/sec
Native for invalid case using instanceof	40063570.0 Ops/sec
Native for invalid case using typeof	121919300.0 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var a = function () {};
var b = undefined;

Tests: